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package com.mycompany.mavenproject2;


/**
 *
 * @author JSJSYS
 */
public class Calculator {
    
    private double value;
    
    
    public void ac(){
        value = 0;
    }
    
    public void add(int number){
        value += number;
    }
    
    public void substract(int number){
        if(value==0){
            value=number;
        }else{
        value -= number;
    }
    }
    
    public void divide(int number){
    
        try{
            value = value/number;
        }catch(Exception e){
            // TODO
        }
        
    }
    
    public void multiply(int number){
        value *= number;
    }

    public double getValue() {
        return value;
    }
    
    
    
    public static void main(String[] args){
        Calculator calculator = new Calculator();
        calculator.add(10);
        calculator.substract(1);
        calculator.multiply(2);
        calculator.divide(2);
        System.out.println(calculator.getValue());
        calculator.ac();
        System.out.println(calculator.getValue());
    }
    
}


